package com.heima.wemedia.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.common.exception.CustomException;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmUserDto;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.common.AppJwtUtil;
import com.heima.wemedia.mapper.WmUserMapper;
import com.heima.wemedia.service.WmUserService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.List;

@Service
public class WmUserServiceImpl extends ServiceImpl<WmUserMapper,WmUser> implements WmUserService {
    @Override
    public ResponseResult login(WmUserDto dto) {
        if(StringUtils.isEmpty(dto.getName())||StringUtils.isEmpty(dto.getPassword())){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID,"用户名或密码错误");
        }

        List<WmUser> userList = list(Wrappers.<WmUser>lambdaQuery().eq(WmUser::getName, dto.getName()).eq(WmUser::getPassword, dto.getPassword()));

        if(userList==null||userList.size()==0){
            throw new CustomException(AppHttpCodeEnum.DATA_NOT_EXIST);
        }

        WmUser wmUser = userList.get(0);
        String pwdSalt = DigestUtils.md5DigestAsHex((dto.getPassword() + wmUser.getSalt()).getBytes());
        if(!wmUser.getPassword().equals(pwdSalt)){
            throw new CustomException(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
        }

        HashMap<String, Object> map = new HashMap<>();

        map.put("token",AppJwtUtil.getToken(wmUser.getId().longValue()));
        wmUser.setPassword("");
        wmUser.setSalt("");
        map.put("user",wmUser);
        return ResponseResult.okResult(map);
    }
}
